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"These packs are exclusive to Xbox fans as standalone offers available for a limited time and as there are no plans to feature any in-game purchases in the Xbox Game Preview version, they are the only items that can be purchased during this period," Microsoft warns.

It follows news that Battlegrounds has also been given a PC release date.

PlayerUnknown's Battlegrounds will leave Early Access and be upgraded to version 1.0 on December 20.

Version 1.0 will introduce climbing and vaulting, which are said to severely change the game.

Players will be better able to escape from danger and potentially sneak up on enemies hidden indoors.